Owens Corning is a producer of glass fiber reinforcements and other materials for composites and of residential and commercial building materials. The Company operates in two business segments: composites, which include the Company's reinforcements and downstream businesses, and building materials, which includes its insulation, roofing and other businesses. The Company's products range from glass fiber used to reinforce composite materials for transportation, electronics, marine, infrastructure, wind-energy and other markets to insulation, roofing and manufactured stone veneer for residential, commercial and industrial applications. During the year ended December 31, 2009, the Company's Composites and Building materials business segments accounted for approximately 33% and 67% of total net sales. More »